Gemini 4 Carbon ranks first on Artificial Analysis Intelligence Index v5
AIArtificial Analysis says Google's Gemini 4 Carbon scores 59 on Intelligence Index v5, the highest result, and leads four of nine evaluations. It ranks second on the Coding Agent Index, three points behind Claude Opus 5.5 with Claude Code, and costs $7.76 per Intelligence Index task, about 23% less than Claude Opus 5.5.
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The report compares Gemini 4 Carbon with Claude Opus 5.5 and GPT-6 Astra on cost per task, token use, and hallucination rate, which helps readers weigh tradeoffs beyond raw scores.
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Artificial Analysis Articles · artificialanalysis.aiPublished · added here
Original title: Gemini 4 Carbon is the new #1 on the Artificial Analysis Intelligence Index v5